The time complexity of deleting the last node of a doubly linked list referenced as TAIL is O(1).

Here's why:

1. In a doubly linked list, each node has a reference to both its next node and its previous node.

2. If we have a reference to the TAIL node (the last node), we can directly access it without having to traverse the entire list.

3. Once we have the TAIL node, we can update the 'next' reference of the previous node to null, effectively removing the last node from the list.

4. All these operations are constant time operations, hence the time complexity is O(1).

Question

The time complexity of deleting the last node of a doubly linked list referenced as TAIL is O(1).

Here's why:

1. In a doubly linked list, each node has a reference to both its next node and its previous node.

2. If we have a reference to the TAIL node (the last node), we can directly access it without having to traverse the entire list.

3. Once we have the TAIL node, we can update the 'next' reference of the previous node to null, effectively removing the last node from the list.

4. All these operations are constant time operations, hence the time complexity is O(1).

Knowee AI · Accepted Answer

The time complexity of deleting the last node of a doubly linked list referenced as TAIL is O(1).

Here's why:

1. In a doubly linked list, each node has a reference to both its next node and its previous node.

2. If we have a reference to the TAIL node (the last node), we can directly access it without having to traverse the entire list.

3. Once we have the TAIL node, we can update the 'next' reference of the previous node to null, effectively removing the last node from the list.

4. All these operations are constant time operations, hence the time complexity is O(1).

What is the time complexity of deleting the last node of a doubly linked list referenced as TAIL? Group of answer choicesO(n)O(log n)O(1)O(n^2)